John, I have moved the database onto a dedicated server. I also added a SATA drive on a different controller for spooling the data. While the data is spooling I am seeing 9.5MB/s for writing to the spool drive. When it despools I am seeing 50-55MB/s.
The storage is a Dell TL2000 tape array. Again any help is greatly appreciated. -H -----Original Message----- From: John Drescher [mailto:dresche...@gmail.com] Sent: Tuesday, December 08, 2009 1:02 PM To: Timo Neuvonen; bacula-users Subject: Re: [Bacula-users] Network transfer Speed On Tue, Dec 8, 2009 at 3:45 PM, Timo Neuvonen <timo-n...@tee-en.net> wrote: > "Hayden Katzenellenbogen" <hay...@nextlevelinternet.com> kirjoitti viestissä > news:88bc6885d33a9d42a1ccb45e8749525ed15...@pigeon.sandiego.nextlevelinternet.com... >> Everyone, >> >> I currently have a single server with 2.5TB of local data that I need to >> back up. The problem I am running into is that the server only has a >> 100Mb/s network card so I am limited to 12MB/s of data transfer. I >> thought using the loopback interface would give better speed but it >> seems that I get identical results. >> >> Is there a way to have Bacula read directly off the file system (not a >> raw partition) instead of relying on a network transfer. >> > > I think the network card speed is not a problem here, since it's not used > for actual data transfer. Just a coincidence you happen to reach 100M/8 > rate. > > >> Has anyone had a similar experience with a creative solution. (This >> could be something obvious I have missed). >> > > My first guess is that database & filesystem performance could be the > bottleneck. Do you have the catalog files on the same physical disk, that > you are backing up? And where do you write the data, to the same physical > disk, maybe? All that could cause a lot of disk seek activity. Maybe adding > memory might speed it up, since the OS could buffer more data. And if you > can somehow enable disk write cache too... but it would involve problems if > the system ever happens to crash. > Also, if the storage is a disk volume disable compression. John ------------------------------------------------------------------------------ Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users ------------------------------------------------------------------------------ Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
